Home / 18,966.51-26,183.63-13,856.30

Finding the Fourth Proportional to 18,966.51, 26,183.63 and 13,856.30

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Solution

The fourth proportional to 18,966.51, 26,183.63 and 13,856.30 is: 19,128.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,966.51 : 26,183.63 = 13,856.30 : x
  2. Step 2: Convert to fraction form
    18,966.51/26,183.63 = 13,856.30/x
  3. Step 3: Cross multiply
    18,966.51x = 26,183.63 × 13,856.30
  4. Step 4: Simplify right side
    18,966.51x = 362,808,032.17
  5. Step 5: Solve for x
    x = 362,808,032.17/18,966.51
  6. Step 6: Final answer
    x = 19,128.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.